For sale: 137,000-square-foot building with stunning views of the Catalina and Tortolita mountains through 6,500 windows. The Texas company that built and owns the Biosphere 2 Center near Oracle ...

In the ’80s, a group of scientists and artists wanted to know if they could recreate Earth’s ecosystem, so they built Biosphere 2 (Earth was known as Biosphere 1) in Oracle, Ariz. The experiment was ...

The venture, privately funded to start, is now run by the University of Arizona. And today, scientists there are quietly plugging away at research... ORACLE, Ariz. — Plopped in the Sonoran Desert, ...

Biosphere 2 was touted as a new Noah’s Ark, a new Garden of Eden, a way to test how humans might colonize other worlds and study the effects of greenhouse gasses on Biosphere 1 — aka the Earth. Eight ...

Mark Nelson, one of the eight crew members locked in Biosphere 2 during its first closure experiment, will offer an insider’s view of the dramatic story behind the mini-world in two separate talks at ...